There's a popular oiling trouble While using the pre-1992 R32 RB26 motors, since the surface area exactly where the crankshaft satisfies the oil pump was machined as well compact, ultimately bringing about oil pump failure at high rpm. This issue was fixed in later on versions from the RB26 using https://edgaryebaq.win-blog.com/11408683/about-nissan-rb26-engine-for-sale